INVESTIGATION OF THERMAL CONDITIONS OF THE MOLDING PROCESS OF SLURRY BERYLLIUM OXIDE.

INVESTIGATION OF THERMAL CONDITIONS OF THE MOLDING PROCESS OF SLURRY BERYLLIUM OXIDE.

Authors

Keywords:

beryllium ceramics, thermoplastic slurry, suspension, molding process, heat transfer, phase transition, solidification of casting

Abstract

Results of experiments and calculations of the mathematical model of the motion and heat exchange of the slurry mass in the annular cavity are presented. Temperature distribution, estimated during the experiments, in the form-building cavity of bushing depending on the molding velocity and heat extraction conditions on the walls of form-building of annular cavity lets us determine the transition from liquid (viscous-plastic) state to solid-plastic one. The experiment results were analyzed and generalized using mathematical model of the thermoplastic slurry molding process. The results of calculation are in agreement with the experimental data, and they show physical validity of the proposed mathematical model of the molding process of the beryllium thermoplastic slurry.

References

"1. Dvinskikh Y.V., Popil’skii R.Y., Kostin L.I., Kulagin V.V. Thermo-physical properties of thermo-plastic casting slips of some high-refractory oxides. Ogneupory, 1979, Vol.65, pp. 37– 40. [in Russian]

Shakhov S.A., Bitsoev G.D. Application of Ultrasound in the Manufacture of High Thermal Conductivity Ceramic Articles. Ust’-Kamenogorsk. 1999, -P.145. [in Russian]

Dobrovol’skii A.G. Slurry Casting, Metallurgiya, 1977, Moscow, 246 p. [in Russian]

Akishin G.P., Turnaev S.K., Vaispapir V.Y., et al. Thermal conductivity of beryllium oxide ceramic. Refract. Ind. Ceram., 2009, Vol. 50, pp. 465–468.

Shakhov S.A. and Gagarin A.E. Rheological characteristics of thermoplastic disperse systems treated with ultrasound. Glass and Ceramics, 2008, Vol.65, No.3 – 4, pp. 122 – 124. [in Russian]

Zhapbasbayev U.K., Ramazanova G.I., Sattinova Z.K., Shabdirova A.D. Modeling of the beryllium ceramics formation process. J. of the European Ceramic Society, 2013, Vol. 33, pp. 1403 – 1411.

Assilbekov B.K., Zhapbasbayev U.K., Sattinova Z.K., Ramazanova G.I. Modeling of ceramic products molding process. Almaty, Kazakhstan, 2017. 145 p. [in Russian]

"

Downloads

Published online

2018-09-09

How to Cite

Sattinova, Z., Ramazanova, G., Zhapbasbayev, U., Assilbekov, B., & Mussenova, E. (2018). INVESTIGATION OF THERMAL CONDITIONS OF THE MOLDING PROCESS OF SLURRY BERYLLIUM OXIDE. Eurasian Physical Technical Journal, 15(2(30), 110–116. Retrieved from https://phtj.buketov.edu.kz/index.php/EPTJ/article/view/528

Issue

Section

Статьи
Loading...